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<1234567…34>
  • can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…

    i have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that would be great

    TIA
    CodenameV
    CodenameV CodenameV August 2009 Development
  • Screen$ command, ROM routineHi All, Does anyone know which ROM routine to call for the Screen$ command (and/or the ATTR command)? Any comments on how well it works or the spee…

    ... />
    Does anyone know which ROM routine to call for the Screen ... what's what in the ROM disassemblies I've read (any ...
    R-Tape R-Tape January 2011 Development
  • Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …

    ... problem with the pixel address rom routine at 8874.

    Going ... by the ZXSpectrum Rom Dissassembly book, I'm trying ... be holding 128 after the routine is run?

    Tobo
    Tobo Tobo September 2015 Development
  • I don't think I'm getting the $22AA Pixel-Add rom routineDear all, I'm misunderstanding how the PIXEL-ADD rom routine works. My code... [code]ld b,175 ld c,1 call $22AA ld (hl),a ret[/code] So…

    ... misunderstanding how the PIXEL-ADD rom routine works.

    My code ... that, I'm assuming the rom routine at $22AA will convert the ...
    Tobo Tobo March 2016 Development
  • Calling ROM routinesFirstly, sorry if this is the wrong forum to post this in, but I wasn?t quite sure under which heading is best fitted. I?m trying to figure out how…

    ... how to invoke the LOOKVAR ROM routine to discover where a variable ... don?t cover invocation of ROM routines at all.

    trellis trellis July 2006 Development
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ... I should select the correct rom first, before calling this ... />
    Bit 4: ROM select. ROM 0 is the 128k editor ... 128k syntax checker
    ROM 2: +3DOS
    ROM 3: 48 BASIC
    routine which sends the midi ...
    bverstee bverstee April 2010 Hardware
  • Rom Routines list ?Exist some document that show detailled the routines on the spectrum ROM ? Ad for the Spectrum +3 ? are they the same or exist more ? Example i was …

    ... the routines on the spectrum ROM ?
    Ad for the ... Example i was watching the Rom routine called [B]PLOT-SUB[/B ... pop bc

    This routine is the same that in ... B]. But what is the routine to handle a DRAW ?< ... that are on the Rom just to use them.< ...
    arfgh arfgh June 2010 Sinclair Basic
  • How works the Line-Draw ROM routine ?The 'complete spectrum rom dissasembly.pdf' show info related to the draw rom subroutine. The Line-Draw require two sets of parameters: X,Y coordinat…

    ... info related to the draw rom subroutine. The Line-Draw require ...
    arfgh arfgh June 2010 Sinclair Basic
  • Using the ROMs PRINT routineI really am starting from scratch again it seems, but how do you utilize the ROM routine to print characters, I think you point te BC register to an …

    ... how do you utilize the ROM routine to print characters, I think ...
    daveysludge daveysludge January 2012 Development
  • What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…

    ... know I could use the ROM routine (It would suffice, any pointers ... I'm asking for a routine :)

    No need for ...
    na_th_an na_th_an October 2013 Development
  • ZX rom type detectionHere is routine for fast detection of zx rom / computer model. [URL="http://velesoft.speccy.cz/other/ZXROMDETECT.zip"]http://velesoft.speccy.cz/othe…

    Here is routine for fast detection of zx rom / computer model.

    routine for detect zx rom type from 48basic rom.
    I ... br /> Routine return register BC=0-7 for ZX rom type or ... B=255 for unknown rom. Routine is small, but detection will ...
    velesoft velesoft January 2015 Sinclair Miscellaneous
  • A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…

    ... [code]
    ;Redefine Keys routine
    ;By Ast A. Moore ...
    call 8859 ;inside ROM routine BORDER ($2294)
    call ...
    ;A crude debounce routine to prevent
    ;registering ... br /> call $3b5 ;ROM beeper routine
    pop ix ; ...
    Ast_A_Moore Ast_A_Moore October 2017 Development
  • Formating a Floppys for +3Hello, I have use the zx32 emulator in Spectrum +3 model. i have trying to format a 720 Ko diskfile, but it don't work. I get everytime a 180 Ko of…

    It won't make a difference which emulator he uses - the +3DOS ROM format routine will only format to 180k. You need to get a 720k +3DOS formatting program.
    cyborg cyborg February 2002 Games
  • +3 BASIC and RST 8I've been working on adding commands to the BASIC interpreter, in a similar style to how Interface 1 does it (catch the RST 8 error trap). This works…

    ... Syntax (+3 BASIC)
    ROM2: +3DOS
    ROM3: 48K BASIC
    ROM routine, you're going to have ... actions when calling any standard ROM routine other than RST10, RST18 or ... call the standard tape loading routine, just use:

    ...
    glancaster glancaster February 2009 Development
  • +3 assembler questionI was wondering if anyone could give any suggestions as to how to get this bit of code working on the +2A/+3 in 128k mode. It works on the +128k/+2 i…

    ... ;462763]On entry into the routine BANK678 = 00000100 and BANKM = 00010000 ... indicating that the 48K BASIC ROM 3 is paged in.[/QUOTE ... a feeling the interrupt routine invokes the +3DOS ROM to do something to ...
    chev chev August 2010 Sinclair Basic
  • Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…

    ... . It then jumps to the ROM routine, and starts loading as normal ... the checksum byte), the return routine changes the RAM page, resets ... problems for converting to disk (+3DOS / TR-DOS / other) formats ...
    ajmoss ajmoss August 2010 Development
  • Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…

    ... . It then jumps to the ROM routine, and starts loading as normal ... the checksum byte), the return routine changes the RAM page, resets ... problems for converting to disk (+3DOS / TR-DOS / other) formats?[/QUOTE ...
    Speccyman Speccyman August 2010 Development
  • Empire! Help neededCan anyone convert the listing in the Tipshop to Multiface pokes? Im having a hard time with this game, over 15 years playing it, now I could do wit…

    ... to be available. Is the +3DOS rom locked or is it still ... similar games, would be a routine that would switch to USR ... the question(s) remains. Is +3DOS still available in USR 0 ... rely on the routines from +3DOS or does access the disk ...
    zxbruno zxbruno September 2011 Games
  • Disabling the +3 disk buffer; yes, but how?I would like to disable the +3 disk buffer in order to retrieve those 4K from the machine's RAMdisk. By reading the computer manual and some posts on…

    ... that simply calling the routine with RANDOMIZE USR 1346 won ... call a routine in the +3 DOS ROM, you need ... placing the M/C routine somewhere below 49152, say ... routine itself, you first have to page in the +3DOS ... full access to the +3DOS ROM, so let's continue ...
    The_Bert The_Bert February 2013 Sinclair Basic
  • Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …

    ... I was reading through the +3DOS ROM disassembly. Could the carry flag ... as can any other library routine that uses this function.
    Alcoholics Anonymous Alcoholics Anonymous September 2013 Development
  • +3 Disk drive motorHi, I'm creating a disk file menu selector. I was wondering how to turn off the +3 drive motor and the motor timeout check from Basic (poking the co…

    In order to call ANY routine in the +3DOS ROM, you must first set ... machine language calling routine, you must page in ROM 2 (obviously), and ... you can call your desired +3DOS routine - always remember to set up ...
    The_Bert The_Bert February 2014 Development
  • +3 Disk drive motorHi, I'm creating a disk file menu selector. I was wondering how to turn off the +3 drive motor and the motor timeout check from Basic (poking the co…

    ... order to call ANY routine in the +3DOS ROM, you must first ... machine language calling routine, you must page in ROM 2 (obviously), ... you can call your desired +3DOS routine - always remember to set ... for +3DOS configuration before calling a +3 DOS routine. It ...
    Speccy_James Speccy_James February 2014 Development
  • My new Spectrum +3 has no start menu.Hi all, I recently took delivery of my 'new' Spectrum +3 from a Fleebay auction. So I serviced the drive on Saturday as it had a snapped drive belt …

    ... 40093 holds the +3DOS ROM and the 48k ROM so if you have ... that ROM is fine. The fact that the reset and test routine ... is booting fine tells you that the first ROM is ... why it should boot into ROM 3 though :confused:
    guesser guesser February 2014 Hardware
  • c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…

    ... it switches from ROM3 (48k rom) to ROM1 (128k syntax ... to load into the paging routine.
    [code]
    ... four ROMs are:
    ROM 0: 128k editor, menu system ... syntax checker
    ROM 2: +3DOS
    ROM 3: 48 BASIC
    FrankT FrankT March 2017 Announcements
  • Custom Menus on the ZX Spectrum +3Today, my Friends, i have the pleasure of presenting a program i have written which gives a set of custom menus on the +3. The main features of my p…

    Doesn't +3DOS (and thus by extension the ... calculator that call the relevant ROM routine and then return the paging ...
    AndyC AndyC October 2017 Sinclair Basic
  • Custom Menus on the ZX Spectrum +3Today, my Friends, i have the pleasure of presenting a program i have written which gives a set of custom menus on the +3. The main features of my p…

    ... MUST run with the BASIC ROM, AND RAM Page 0 paged ... /> [quote="AndyC;925463"]Doesn't +3DOS (and thus by extension the ... calculator that call the relevant ROM routine and then return the paging ... moment.
    Too bad the +3DOS does that thing to the ...
    The_Bert The_Bert October 2017 Sinclair Basic
  • New Utility to Transfer Z80 Snapshot to +3 DiskSince getting a Gotek for my +3 it has been my go to machine. The biggest downside however is the lack of older games on disk format with pretty much…

    ... variables, the Stack & 3DOS. After a bit of experimentation ... banks and includes the patched ROM routine):

    1) Loader ... )
    15) Turn off 3DOS (close file, turn off motor ... which is used extensively for 3DOS anyway. This will unfortunately ...
    TomD TomD May 2019 Development
  • TZX and the ZX81Evenin All. EightyOne is now is a state where I can support a more descriptive tape format. I know how some people have been calling for tzx suppor…

    ... tapes use the standard ROM routine. So, for an example ...
    ZX80 with ZX81 ROM retro fitted 1k - 64k ...

    "ROM/RAM type add-ons" gets ... 0 ZX80 ROM
    1 ZX81 ROM
    2 ASZMIC ROM
    ... 3 TREE-FORTH ROM
    MikeW MikeW September 2004 Emulators
  • BEEPing in assemblyI'm using Z88DK and I'd like to know how to produce BEEPs. I know it's a matter of writting very fast to a certain port, but I've read somewhere that…

    ... somewhere that there's a ROM routine ready to be used. Any ... "BEEP 1,0" using the ROM routine?

    If this info ...
    na_th_an na_th_an April 2005 Development
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  • can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…
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  • How works the Line-Draw ROM routine ?The 'complete spectrum rom dissasembly.pdf' show info related to the draw rom subroutine. The Line-Draw require two sets of parameters: X,Y coordinat…
  • Screen$ command, ROM routineHi All,<br /> <br /> Does anyone know which ROM routine to call for the Screen$ command (and/or the ATTR command)? Any comments on how well it works…
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  • Rom routine for pixel addressDear all,<br /> <br /> Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine…
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